Scratch | Home | imagine, program, shareScratch is a (visual) programming language that makes it easy to create your own interactive stories, animations, games, music, and art -- and share your creations on the web.
created by MIT Media Lab

"A collection of 3rd Party and our own .NET library benchmarks
found on the Internet showcasing the performance of .NET server technologies."

Unfortunately, despite all marketing, Microsoft's ORM solution (EF4)
is much slower than others, same as I have observed on my simple tests...
While in many cases database access is just one element of overall performance,
it is not practical to spend 10x more time than necessary.
My guess is that using dynamics could be a reason for speed penalty,
and one solution may be adding static typing option.